Variable-speed and reversing gear.



No. 767,866. PATENTED AUG. 16, 1904.

. J. G. BUSOHE.

' I VARIABLE SPEED AND REVERSING GEAR.

, APPLICATION FILED APR. 19, 1904. N0 MODEL. 2 SHEETS-SHEBT 1.

INVENTOR 70in CfBuscfie A TTORN No. 767,866. PATENTED AUG. 16, 1904. J.O. BUSGHE.

VARIABLE SPEED AND REVERSING GEAR.

APPLIUATION FILED 12.19, 1904. n'o'monm. 2 SHBETSSHEET.2.

WITNE$8E8r I INVENTOI? cf"&

@ By I ATTORNEYS UNITED STATES Patented August 16, 1904.

PATENT OFFICE.

VARIABLE-SPEED AND REVERSING GEAR.

SPECIFICATION forming part of Letters Patent No. 767,866, dated August16, 1904.

Application filed April 19, 1904:. Serial No. 203,867. (No model.)

To a whom it may concern.-

Be it known that I, J OHN C. BUSOHE, a citi- Zen of the United States,and a resident of Turtlecreek, in the county of Allegheny and State ofPennsylvania, have invented a new and Improved Variable-Speed andReversing Gear, of which the following is a full, clear, and exactdescription.

The invention relates to the transmission of power from a driving memberto a part to be driven; and its object is to provide a new and improvedvariable-speed and reversing gear arranged to permit convenientreversing of the motion and varying of the speed in both forward andbackward positions of the gear without requiring stopping of the drivingmember.

The invention consists of novel features and parts and combinations ofthe same, as will be more fully described hereinafter and then pointedout in the claims.

A practical embodiment of the invention is represented in theaccompanying drawings, forming a part of this specification, in whichsimilar characters of reference indicate corresponding parts in all theviews.

Figure 1 is a side elevation of the improvement'. Fig. 2 is a plan viewof the same. Fig. 3 is an enlarged sectional side elevation of thepinion, showing its teeth in a withdrawn inactive position. Fig. 4 is alike view of the same, showing the teeth in a projected active position.Fig. 5 is a perspective view of one of the pinion-teeth. Fig. 6 is aside elevation of the movable hub of the pinion. Fig. 7 is across-section of'the same on the line 7 7 of Fig. 6. Fig. 8 is asectional side elevation of part of the face-wheel. Fig. 9 is anenlarged plan view of one of the split rings for fastening a tooth ofthe face-wheel in place, and Fig. 10 is a plan view of part of the webor body of the pinion.

The shafts A and B, either of which may be driven, are journaled in asuitable frame C, and on the end of the shaftAis secureda facewheel D,and a pinion E is mounted to slide on and to turn with the shaft B. Thefacewheel D is provided on its face with concentric rows of teeth D, D Dand D, each preferably formed by spaced equidistant pins removablysecured to the web of the wheel and held in place thereon by split ringsD", (see Figs. 1, 8, and 9,) engaging annular grooves in the teeth andabutting against the under side of the web of the wheel D, as plainlyindicated in Fig. 8.

The pinion'E consists, essentially, of a hub E, mounted to turn with andto slide lengthwise on the shaft B, a web or body E and teeth E mountedto slide radially in suitable guideways in the web E to permit ofprojecting the teeth beyond the peripheral face of the web E (see Figs.1 and 4,) so as to move the teeth E in mesh with the teeth of any one ofthe concentric rows D, D, D", or D. The teeth E are adapted to bewithdrawn within the body E (see Fig. 3) to move the teeth out of meshwith the corresponding teeth D, D D or D to allow convenient shifting ofthe pinion E on its shaft B across the face of the face-wheel Dpreliminary to varying the speed or reversing the motion, as hereinaftermore fully explained.

In order to move the teeth E radially in or out, as above mentioned, thehub E is provided with an annular groove having beveled parallel sidewalls E and E engaging correspondingly-beveled sides of a tongue E onthe lower or inner end of each tooth E, so that when the teeth F are ina withdrawn position, as shown in Fig. 3, and the body E is heldagainst-lengthwise movement and the hub E is moved lengthwise on theshaft B from the left to the right then the beveled side wall E acts onthe tongue E to slide the teeth E radially outward in their guideways inthe web E to protect the teeth E beyond the peripheral face of the web Eas illustrated in Fig. 4. When it is desired to withdraw the teeth Ethen the motion of the hub E is reversed that is, it is moved from theright to the left so that the beveled side wall E" acts on the severaltongues E to push the teeth E inward into a withdrawn position, asillustrated in Fig. 3.

In order to engage the beveled side wall with the tongues E, the saidside wall is somewhat larger in diameter than the side wall 1*? toreadily engage the innermost ends of the tongues E. When the teeth E arein a withdrawn position, as shown in Fig. 3, then the pinion E can bebodily shifted lengthwise on the shaft B to bring the pinion in registerwith any one of the rows of teeth I), D I), or D" on either side of theaxis of the wheel I), it being understood that the shaft B extendsdiametrically across the face, as shown in Fig. 2, and the peripheralface of the web E is immediately above the terminals of the teeth I), D1), and D.

In order to allow of shifting the pinion E bodily on the shaft B, asdescribed, the following device is provided: In the web is arranged anannular groove E, engaged by a shifting fork F, integral with a sleeveF, mounted to slide lengthwise on a bar G, attached to the frame U andextending above the shaft B parallel therewith and in the same verticalplane. In the bar (I are formed sets of notches G and (i adapted to beengaged by a locking-pin H, mounted to slide in the sleeve F and underthe control of the operator manipulating a lever H, fulcrumed on thesleeve and connected with the locking-pin H. By the operator pressingthe lever H against the tension of a spring H the pin H is withdrawnfrom a notch Ur to allow the operator to shift the sleeve Flengthwise onthe bar G, so that the shifting fork F carries the pinion E along untilthe pinion stands in register with the corresponding row of teeth I), D,D", or D on the desired side of the axis of the wheel D, and then theoperator releases the lever H, so that the pin H engages thecorresponding notch in the set of notches G or G to hold the shiftingfork F, and consequently, the pinion E, against lengthwise movement.

In order to shift the hub E relative to the web E, as previouslyexplained, the outer end of the said hub is provided with an annulargroove E, engaged by a shifting lever I, fulcrumcd on the sleeve F andunder the control of the operator, the shifting lever I having ahand-lever I for locking the lever I on a notched segment I, carried bythe sleeve F.

When the teeth Eare projected and in mesh with one of the concentricrows of teeth D, D D, and D" and it is desired to shift the pinion E,then the operator first manipulates the lever I to impart a slidingmotion to the hub E for moving the teeth E into a withdrawn position, asabove described and shown in Fig. 3, the hub E then being locked againstlengthwise movement relative to the web E by the hand-lever I engagingthe correspondihg notch in the segment I. The operator now presses thelever H to withdraw the locking-pin H from the corresponding notch inthe set of notches G or G and then the operator pushes the sleeve Flengthwise on the bar Gr to move the pinion E lengthwise on its shaft Buntil the pinion stands in register with the desired row of teeth D, D,D", or D and on the desired side of the axis of the wheel D. When thedesired position has been reached, the operator releases the lever H,thus engaging the pin H with the corresponding notch in the set ofnotches G or i to hold the sleeve F, and consequently the web E and itsteeth E against lengthwise movement. The operator now swings the lever Iback to the former position, so as to project the teeth E beyond theperipheral face of the web E' to move the teeth in mesh with thecorresponding row of teeth D, D D or D".

It is understood that when the shaft A is the driving-shaft and thepinion E is in mesh with the row of teeth Dsay from the righthand sideof the axis of the wheel D, as shown in Figs. 1 and 2then a rotarymotion is transmitted by the wheel I) and pinion E to the shaft B at ahigh rate of speed, the shaft turning in a forward direction. WV hen thepinion E is shifted from the right to the left in mesh with any one ofthe rows of teeth D D or D on the right-hand side of the axis of thewheel D, then the shaft B is still rotated in the same forwarddirection, but at a correspondingly-lower rate of speed; but when thepinion E is shifted to the left of the axis of the wheel D in mesh withany one of the rows of teeth D", D, D or D then the motion of the shaftB is reversed and rotated at a corresponding rate of speed, according towhich of the concentric rows of teeth 1), D D or D the pinion E is movedin mesh with.

Having thus described my invention, I claim as new and desire to secureby Letters Patent-- 1. A variable-speed and reversing gear, comprising aface-wheel having concentric rows of pins removably secured to the webof the wheel, means for holding the pins in place,

and a pinion adapted to mesh with either of said rows of pins.

2. A variable-speed and reversing gear, comprising a face-wheel havingconcentric rows of pins removably secured to the web of the wheel, splitrings engaging annular grooves in the pins and abutting against theunder side of the web of the wheel to hold the pins in place, and apinion adapted to mesh with either of said rows of pins, on either sideof the axis of the face-wheel.

3. A variable-speed and reversing gear, comprising a face-wheel havingconcentric rows of teeth each formed of pins removably secured on theweb of the wheel, means for holding the pins in place, a shaft extendingacross the face of the wheel, and a pinion mounted to turn with and toslide on the said shaft and adapted to mesh with either of said rows ofteeth.

4. A variable-speed and reversing gear, comprising a face-whecl havingconcentric rows of spaced pins secured on the web of the wheel, meansfor removably holding the pins in place, a shaft extending across theface of the wheel, and a pinion mounted to turn with and to slide on thesaid shaft and adapted to mesh with IIO . sisting of a body or web,teeth movable in the body whereby they can be moved in or out of. meshwith the teeth on the face-wheel, and a hub movable relative to the bodyand control ling the movement of the teeth.

6. A variable-speed and reversing gear, comprising a face-Wheel havingconcentric rows of teeth on its face, a shaft extending across the faceof the wheel, and a pinion adapted to mesh with either row of teeth onthe facewheel, the said pinion consisting of a hub mounted to slide onand to turn with the shaft, a web, and teeth mounted to slide raldialllyin theweb and controlled by the said 111 7. A gear-wheel or pinionhaving a body, a hub slidable relative to the body, and radiallymovableteeth controlled by the movement of the hub. p

8. A gear-wheel or pinion, comprising a body, a hub slidable relativeto'the body and having an annular groove with beveled side walls, andteeth mounted to slide radially in the body and having tongues formedwith beveled sides adapted to be'engaged by the said side walls of thegroove.

9. .A gear-wheel or pinion comprising a web, a hub slidable relative tothe web, and teeth mounted to slide radially in the said web, to projectthe teeth beyond the face of the said web or to-withdraw the teethwithinthe'web, the radial movement of the teeth being controlled by thesaid hub.

10. A gear-Wheel or pinion comprising a web, a hub slidable relative tothe web, teeth mounted to slide radially in the said web, to project theteeth beyond the face of the said web or to withdraw the teeth withinthe web," the radial movement of the teeth being con trolled by the saidhub, means for'holding the said web against lengthwise movement, and

means for moving the relative to the said web.

11. A variable-speed and reversing gear, comprising a face-wheel havingconcentric rows of teeth on its face, each formed of a set of spacedpins, a shaft extending diametrically across the face of the said wheeland spaced from the terminals of the said pins, and a pinion mounted toslide on and to turn with the said shaft and adapted to mesh with eitherset of pins on either side of the axis of the fac'e-wheel, the saidpinion consisting of a hub mounted to slide on and to turn with the saidshaft, a web, teeth mounted to slide said hub lengthwise radially in thesaid Web and controlled by the said hub, means under the control of theoperator for shifting the said pinion lengthwise on the said shaft, andmeans under the control of the operator for shifting the said hublengthwise relative to the said web.

12. A variable-speed and reversing gear, comprising a face-Wheel havingconcentric rows of teeth on its face, each formed of a set of spacedpins, a shaft extending diametrically across the face of the said wheeland spaced from the terminals of the said pins, and a pinion mounted toslide on and to turn with the said shaft and adapted to mesh with eitherset of'pins on either side of the axis of the face-wheel, the saidpinion consisting of a hub mounted to slide on and to turn with the saidshaft,'a web, teeth mounted to slide radially in the said web andcontrolled by the said hub, means under the control of the operator forshifting the saidpinion lengthwise on the said shaft, means under thecontrol of the operator for shifting the said hub lengthwise relative tothe said web, and locking devices for the said means.v

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

JOHN G. BUSOHE.

